Physically Derived Sound Synthesis Model of a Propeller

A real-time sound synthesis model for propeller sounds is presented. Equations obtained from fluid dynamics and aerodynamics research are utilised to produce authentic propeller-powered aircraft sounds. The result is a physical model in which the geometries of the objects involved are used in sound synthesis calculations. The model operates in real-time making it ideal for integration within a game or virtual reality environment. Comparison with real propeller-powered aircraft sounds indicates that some aspects of real recordings are not replicated by our model. Listening tests suggest that our model performs as well as another synthesis method but is not as plausible as a real recording.

[1]  E Z Stowell,et al.  Noise from Two-Blade Propellers , 1936 .

[2]  Joshua D. Reiss,et al.  Real-time physical model of an Aeolian harp , 2017 .

[3]  David Moffat,et al.  Web Audio Evaluation Tool: A Browser-based Listening Test Environment , 2015 .

[4]  Andy Farnell,et al.  Designing Sound , 2008 .

[5]  Herman Van der Auweraer,et al.  Real-time Synthesis and Sound Quality Evaluation of Interior Aircraft Noise , 2005 .

[6]  J. E. Marte,et al.  A Review of Aerodynamic Noise From Propellers, Rofors, and Liff Fans , 1970 .

[7]  Method for the subjective assessment of intermediate quality level of , 2014 .

[8]  Fernando Lau,et al.  On a Generalized Multipole Expansion with Application to Propeller Design Synthesis , 2014 .

[9]  E. Covert,et al.  Flow-Induced Pressure Oscillations in Shallow Cavities , 1971 .

[10]  Rolf Bader,et al.  Real-Time Finite-Difference Method Physical Modeling of Musical Instruments Using Field-Programmable Gate Array Hardware , 2016 .

[11]  Wim Desmet,et al.  Model-based synthesis of aircraft noise to quantify human perception of sound quality and annoyance , 2008 .

[12]  Hajime Fujita,et al.  The characteristics of the Aeolian tone radiated from two-dimensional cylinders , 2010 .

[13]  Perry R. Cook,et al.  Real Sound Synthesis for Interactive Applications , 2002 .

[14]  P. J. W. Block,et al.  Analysis of noise measured from a propeller in a wake , 1984 .

[15]  David Brown,et al.  Propeller Noise at Low Tip Speeds , 1971 .